package com.cscp.javastudy.juc.queue;

import java.util.concurrent.BlockingQueue;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.TimeUnit;

/**
 * 同步队列
 * 和其他的Blockingqueue不一样，这个队列不存储元素，put一个元素后必须要take出来
 */
public class SynchronousQueueDemo {

    public static void main(String[] args) {

        BlockingQueue<String > synchronousQueue = new SynchronousQueue<>();

        new Thread(()->{
            try {
                System.out.println(Thread.currentThread().getName()+" put 1");
                synchronousQueue.put("1");
                System.out.println(Thread.currentThread().getName()+" put 2");
                synchronousQueue.put("2");
                System.out.println(Thread.currentThread().getName()+" put 3");
                synchronousQueue.put("3");
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }, "T1").start();

        new Thread(()->{
            try {
                TimeUnit.SECONDS.sleep(2);
                System.out.println(Thread.currentThread().getName()+"=>"+synchronousQueue.take());
                TimeUnit.SECONDS.sleep(2);
                System.out.println(Thread.currentThread().getName()+"=>"+synchronousQueue.take());
                TimeUnit.SECONDS.sleep(2);
                System.out.println(Thread.currentThread().getName()+"=>"+synchronousQueue.take());
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }, "T2").start();

    }
}
